JP2018115055A - Picking system, management device, mobile terminal and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a picking system for preventing a delay in an operation time and a reduction in a working efficiency.SOLUTION: A picking system for picking articles by using a management device and a mobile terminal capable of communicating with the management device through wireless communication, wherein the management device has transmitting means for transmitting picking information for instructing picking of the respective articles to the mobile terminal, and the mobile terminal has receiving means for receiving the picking information; and a transmission mode of the picking information transmitted by the management device in the transmitting means is switched based on prescribed conditions.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a picking system, a management device, a mobile terminal, and a program.

  In response to orders from mass merchandisers such as supermarkets, drug stores, and home centers, picking by order and picking by department (by sales floor) are performed at distribution centers operated by wholesalers and manufacturers. In addition, since a variety of products in a small quantity are required by customers, various distribution equipment is used at distribution centers depending on product characteristics and shipping frequency. In particular, due to the small quantity of various products and picking by department, the number of front doors for placing products increases, and the number of packages (the number of oricons and cardboard boxes) also increases. Therefore, a picking system using a mobile terminal (wireless handy terminal or the like) has become the mainstream instead of a conventional digital picking system or the like (see, for example, Patent Document 1). The mobile terminal receives picking instruction data from the host device by wireless communication, and displays information based on the picking instruction data (location, number of items to be picked, etc.). The mobile terminal receives picking instruction data in a mode in which picking instruction data for the next picking target product is received one after another during picking work, or picking instruction data for all picking target products at the time of picking work disclosure. In such a case, the reception mode may be considered.

JP 2014-218318 A

  However, when picking instruction data of the next picking target product is received one after another during picking work, picking instruction data is received at a place surrounded by the product shelf, but the place surrounded by the product shelf is compared. When a communication failure in wireless communication occurs, it takes time to receive picking instruction data, and there is a problem that work time is delayed or work efficiency is lowered. For example, if a communication failure occurs in wireless communication, the number of retries until reception is increased, and it takes time to recover the wireless module (for example, restarting the device), so the work time is delayed. Work efficiency has been reduced. On the other hand, when picking instruction data for all products to be picked is received at the same time when picking work is disclosed, picking instruction data is received at the start point where communication failure is relatively unlikely, but the work progress is grasped in real time. As a result, there is a problem that work time is delayed or work efficiency is lowered. For example, if the product to be picked is out of stock after receiving batch picking instruction data, the product will be moved to the location of the product that has been out of stock, and sudden cancellation or addition occurs. Since the cancellation or the like is not automatically reflected, the cancellation or the like is newly dealt with, so that the working time is delayed or the working efficiency is lowered.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a technique for preventing a delay in work time and a reduction in work efficiency.

  In order to solve the above-described problem, a picking system according to an aspect of the present invention is a picking system that performs picking of a product using a management device and a mobile terminal that can communicate with the management device by wireless communication. The management apparatus includes a transmission unit that transmits picking information for instructing picking of each product to the mobile terminal, and the mobile terminal includes a reception unit that receives the picking information, and the management apparatus transmits the picking information. The transmission mode of the picking information in the transmission unit is switched based on a predetermined condition.

  According to the above configuration, it is possible to prevent a delay in work time and a decrease in work efficiency. Note that the management apparatus may control switching of the transmission mode based on a communication environment or the like, or may control switching of the transmission mode based on a request from the mobile terminal.

  In the picking system, the mobile terminal may further include display means for displaying a current transmission mode in the transmission means.

  According to the above configuration, the current (current) transmission mode can be confirmed.

  In the picking system, the mobile terminal may further include notification means for notifying that the transmission mode in the transmission means has been switched.

  According to the above configuration, it can be recognized that the transmission mode has been switched.

  In the picking system, the predetermined condition is a result of quality determination regarding the quality of wireless communication at each storage location where each product is stored. The quality determination includes information regarding wireless quality at each storage location, and information on each storage location. You may make it carry out based on at least 1 of the characteristic of goods, and the congestion degree of goods in each storage place.

  According to the above configuration, the transmission mode can be suitably switched.

  In the picking system, the information related to the wireless quality may be at least one of a radio wave intensity at the time of wireless communication at each storage location and a required communication time at the time of wireless communication at each storage location.

  According to the above configuration, the transmission mode can be suitably switched.

  The picking system may include storage means for storing information on the wireless quality in association with at least the date and time, the identification information of the wireless base station, and the connection channel.

  According to the above configuration, the transmission mode can be suitably switched based on the identification information of the radio base station.

  In the picking system, the information on the wireless quality may be acquired every time a product is picked.

  According to the said structure, the information regarding wireless quality can be acquired simply and efficiently, without using another installation.

  In the picking system, the characteristic of the product may be a characteristic that affects a radio wave intensity during wireless communication.

  According to the above configuration, the transmission mode can be suitably switched.

  The picking system may include an imaging unit that captures an image, and a storage unit that stores an image captured by the imaging unit in association with the determination result of the quality determination.

  According to the above configuration, it is possible to improve efficiency by using an image.

  In order to solve the above-described problems, a management device according to another aspect of the present invention is a management device capable of communicating with a mobile terminal used for picking a product by wireless communication, and picking for instructing the picking of each product. Transmission means for transmitting information to the mobile terminal is provided, and the transmission means switches a transmission mode of the picking information to the mobile terminal based on a predetermined condition.

  According to the above configuration, it is possible to prevent a delay in work time and a decrease in work efficiency.

  In order to solve the above-described problem, a mobile terminal according to another aspect of the present invention is a mobile terminal that can communicate with a management apparatus by wireless communication and is used for picking a product, and instructs the picking of each product. Receiving means for receiving picking information to be transmitted from the management apparatus, and notifying means for notifying that the transmission mode of the picking information transmitted by the management apparatus has been switched.

  According to the above configuration, it is possible to recognize a change in transmission mode.

  In order to solve the above-described problem, a program according to another aspect of the present invention is a management apparatus in a picking system that performs picking of a product using a management apparatus and a mobile terminal that can communicate with the management apparatus by wireless communication. A program for causing the first computer to function as a mobile terminal in the picking system, wherein the first computer transmits picking information for instructing picking of each product to the mobile terminal. A program that causes the second computer to function as a receiving unit that receives the picking information, and switches a transmission mode of the picking information to the mobile terminal as the transmitting unit.

  According to the above configuration, it is possible to prevent a delay in work time and a decrease in work efficiency.

  As described above, it is possible to prevent a delay in work time and a decrease in work efficiency.

It is the network block diagram which showed an example of the picking system. It is an example of a picking cart or oricon. It is a schematic diagram which shows an example of a picking area. It is a general-view figure which shows an example of a shelf. It is a functional structural example of a management server and a functional structural example of a mobile terminal. It is an example of the various information which a management server memorize | stores. It is an example of the various information which a management server memorize | stores. It is a flowchart which shows an example of the operation | movement regarding the production | generation and transmission of the picking instruction | indication data by a management server. It is an example of picking instruction data and picking completion data. It is an example of picking instruction data and picking completion data. It is explanatory drawing explaining the mode of picking. It is a flowchart which shows an example of the operation | movement regarding accumulation | storage (collection) of environmental information by a mobile terminal and a management server. It is an example of the environmental information which a management server memorize | stores. It is a flowchart which shows an example of operation | movement of determination of the communication environment by a management server.

  FIG. 1 is a network configuration diagram illustrating an example of a picking system 1. The picking system 1 includes a management server 10, at least one mobile terminal 20 (mobile terminals 20-1, 20-2,...), At least one access point 8 (access point 8-1, access point 8-22, …). The mobile terminal 20 is, for example, a wireless handy terminal or a tablet terminal, and includes a terminal based on voice recognition / response. The access point 8 is a wireless router, for example. The management server 10 and the access point 8 are connected by a LAN 9 (which is a wired LAN in FIG. 1 but may be a wireless LAN). The mobile terminal 20 can communicate with the management server 10 via the access point 8. The management server 10 can communicate with an external device (for example, the order server 30 that receives order information).

  FIG. 2 is an example of the picking cart 2 and the oricon 40. As shown in FIG. 2, the picking cart 2 includes a mobile terminal 20, a scanner unit 21, a weighing unit (not shown), a weighing table 22, and a camera 23. For example, the scanner unit 21 recognizes identification information (product code) of a picked product. The scanner unit 21 prints on other identification information (for example, identification information printed on each label when the label is associated with each Oricon 40, a name tag of an operator (hereinafter simply referred to as an operator), etc.) Identification information) can also be recognized. The weighing unit measures the weight of the item placed on the weighing table 22 (for example, the Oricon 40 into which the picked product is put). In addition, the picking cart 2 shown in FIG. 2 has the four weighing platforms 21, and can place a total of four oricons 40 thereon. The camera 23 images the surroundings. The mobile terminal 20 acquires a recognition result by the scanner unit 21, a measurement result by the weighing unit, and a captured image by the camera 23. Note that the mobile terminal 20 (same for the scanner unit 21 and the camera 23) may be detachable from the picking cart 2. The worker moves the picking cart 2 to a place (hereinafter, referred to as a picking area) where a shelf (hereinafter, simply referred to as a shelf) where the products are stored is installed, and performs the picking work of the ordered product. In FIG. 2, the shapes of the mobile terminal 20, the camera 23, the scanner unit 21, and the like are simplified and do not show actual shapes. Further, the positions of the mobile terminal 20, the camera 23, the scanner unit 21, and the like are not limited to the positions shown in FIG. For example, the picking cart 2 places the camera 23 at a position that does not affect imaging even when the Oricon 40 is placed on the weighing table 22 (a position where the placed Oricon 40 does not interfere with imaging). One or more units may be provided.

  FIG. 3 is a schematic diagram illustrating an example of a picking area. In FIG. 3, the symbol a represents the line number “1”. The line number is identification information for identifying each line constituted by a plurality of shelves in the picking area. In FIG. 3 (the same applies to FIG. 4), the symbol b represents the shelf number “1”. The shelf number is identification information for identifying each of a plurality of shelves constituting each line in each line. Accordingly, the picking area shown in FIG. 3 includes four lines identified by line numbers “1” to “4”, and each line is identified by shelf numbers “1” to “6” 6. There are two shelves.

  In FIG. 3, the lower left position (position near the shelf number “1” of the line number “1”) is the picking start position, and the lower right position (near the shelf number “6” of the line number “4”). Is a picking end position. An arrow from the picking start position to the end position is a picking path (picking path) that passes through the front side (the picking side) of each shelf. In the example shown in FIG. 3, one picking cart 2 is shown on the picking path (the worker is not shown). Moreover, the goods stored in each shelf are thrown in from the back side of each shelf. Note that the access points 8-1 and 8-2 are actually installed above (at least at a height that does not interfere with the picking work), not on the floor surface.

  FIG. 4 is an overview diagram showing an example of a shelf. In FIG. 4, the symbol c represents the column number “1”, and the symbol b represents the column number “1”. The column number is identification information for identifying each column in a shelf having a plurality of columns. The column number is identification information for identifying each column in a shelf having a plurality of columns. Therefore, each shelf shown in FIG. 4 has six columns identified by column numbers “1” to “6” and three columns identified by column numbers “1” to “3”. Yes. In addition, the arrow in FIG. 4 represents the picking path | route like FIG.

  FIG. 5A is a functional configuration example of the management server 10. As shown in FIG. 5A, the management server 10 includes a picking control unit 100, a determination unit 110, a communication unit 120, an order information storage unit 170, an environment information storage unit 180, a determination result storage unit 181, a shelf master 190, A merchandise master 191, a merchandise position master 192, and a merchandise inventory master 193 are provided.

  The order information storage unit 170 stores, for example, order information received from the order server 30 (see, for example, FIG. 7A). The environment information storage unit 180 stores, for example, various environment information (for example, see FIG. 13) regarding the environment in the picking area. The determination result storage unit 181 stores, for example, determination result information by the determination unit 110 (see, for example, FIGS. 7B and 7C). The shelf master 190 stores, for example, various types of information (for example, see FIGS. 6A and 6B) regarding the shelf in the picking area. The product master 191 stores, for example, product basic information (see, for example, FIG. 6C). The merchandise position master 192 stores, for example, merchandise position information (see, for example, FIG. 6D). The merchandise inventory master 193 stores, for example, merchandise inventory information (see, for example, FIG. 6E).

  Note that “ABC” in FIG. 3 represents the storage position (excluding the height direction) of the product with the product name “ABC” in the basic product information in FIG. 6C. According to the basic product information in FIG. 6C, the product with the product code “4900001” is the product “ABC”, and according to the product location information in FIG. 6D, the location number of the product code “4900001” is “2”. According to the location information in FIG. 6A, the location number “2-2-3-3” is the line number “2” —the shelf number “2” —the column number “3”. "-Stage number" 3 ", in FIG. 3," ABC "is illustrated at a position corresponding to line number" 2 "-shelf number" 2 "-column number" 3 ". The same applies to “DEF” in FIG. 3 and “aa” to “ll” in FIG.

  The picking control unit 100 refers to the order information storage unit 170 and generates picking instruction data (sometimes referred to as picking information). Further, the picking control unit 100 refers to the determination result storage unit 181 and generates the picking instruction data at a timing for generating the picking instruction data (to generate the picking instruction data immediately before transmission to the mobile terminal 20, that is, immediately after the generation, In order to transmit to the mobile terminal 20, the transmission timing is also controlled.

  The determination unit 110 refers to the environment information storage unit 190 and determines whether the wireless communication environment is good (good / bad transmission / reception) and the possibility of bad wireless communication environment (large / small possibility of bad transmission / reception). Determine. The determination unit 110 stores the determination result in the determination result storage unit 181. Note that the wireless communication is WIFII, infrared communication, or the like.

  The communication unit 120 transmits and receives information to and from the outside. For example, the communication unit 120 receives order information and the like from the order server 30. In addition, the communication unit 120 transmits picking instruction data and the like to the mobile terminal 20. Further, the communication unit 120 receives picking completion data, information on radio wave intensity, communication required time, and the like from the mobile terminal 20. The picking completion data is notification information for notifying the management server 10 that the picking work for a certain product has been completed, and is request information for requesting the management server 10 for the next picking instruction data. However, when there is no picking instruction data to be transmitted to the mobile terminal 20, the management server 10 is a product that is picked up last on the route by the product notified of the completion of the picking work by the picking completion data received from the mobile terminal 20. In some cases, when the route of the product for which the completion of the picking work is notified by the picking completion data received from the mobile terminal 20 has already transmitted the picking instruction data of the next product to the mobile terminal 20), the picking is completed The picking instruction data may not be transmitted to the mobile terminal 20 in response to the data reception. Further, the request information may not notify the completion of the picking work. For example, the picking instruction data for the second and subsequent products may be requested by sending a notification of completion of the picking operation for the immediately preceding product, but there is no previous product for the first product. Therefore, the request information transmitted at the start of the picking work does not notify the completion of the picking work.

  FIG. 5B is a functional configuration example of the mobile terminal 20. As shown in FIG. 5B, the mobile terminal 20 includes a control unit 200, a display operation unit 210, a communication unit 220, and a storage unit 290. The control unit 200 controls the entire mobile terminal 20. When mounted on the picking cart 2, the entire picking cart 2 may be controlled including the scanner unit 21, the weighing unit (not shown), the camera 23, and the like. The control unit 200 also measures the reception status (radio wave intensity) of radio waves output from the access point 8 and the time required for communication (data transmission / reception) with the management server (communication required time).

  The display operation unit 210 (for example, a touch display) displays various information and accepts various operations. For example, the display operation unit 210 displays information (location, number of items to be picked, etc.) based on picking instruction data to the worker, and inputs that the picking is completed (for example, pressing an OK button) from the worker. Accept.

  The communication unit 220 transmits and receives information to and from the outside. For example, the communication unit 220 receives picking instruction data from the management server 10. In addition, the communication unit 220 transmits picking completion data, information on radio wave intensity, communication required time, and the like to the management server 10.

  The storage unit 290 stores various information. For example, the storage unit 290 stores information (picking instruction data and the like) received from the outside, and information generated or acquired (information about picking completion data, radio wave intensity, required communication time, and the like).

  6 and 7 are examples of various types of information stored in the management server 10. FIG. 6A is an example of location information stored in the shelf master 190. The location information is generated, for example, by the administrator of the picking system 1 based on the installation status (layout) of the picking area shelf. Accordingly, the location information is updated when the installation status of the shelf changes (for example, when the number of lines increases or decreases, when the number of shelves for one line increases or decreases).

  FIG. 6B is an example of route information (information indicating a picking route) stored in the shelf master 190. The route information is generated and updated based on the installation status of the shelves, similar to the location information described above. Note that the route information shown in FIG. 6B indicates a predetermined fixed route for convenience of explanation, but the passage state in the coordinate data and remaining data of the entire warehouse (the degree of congestion of the passage). ) Or the like.

  FIG. 6C is an example of product basic information stored in the product master 191. The basic product information is received, for example, from the outside (for example, a server at the headquarters (not shown)) as appropriate (for example, every day). In the present embodiment, the weight of each product is stored as the product basic information in order to measure the weight of the item placed on the weighing table 22 of the picking cart 2 (for example, the Oricon 40 in which the picked product is inserted). doing.

  FIG. 6D is an example of product position information stored in the product position master 192. The storage location of each product is specified by the product location information. The merchandise position information is generated by, for example, an administrator of the picking system 1 based on the storage position of each merchandise, for example. Therefore, the merchandise position information is updated not only when the merchandise storage position is changed, but also when the merchandise is abolished or the installation status of the shelf is changed. The product position information shown in FIG. 6D has a configuration in which a location is assigned to the product, but any product that indicates the relationship between the product and the location may be used. For example, the product is assigned to the location. It is good also as a structure.

  Note that the product position information in FIG. 6D shows the product position information in the case of 1 location per product, but it is not always necessary to have 1 location per product. For example, it is good also as one goods multiple location. In other words, it is possible to register the same product repeatedly for each location. One example of multiple locations for one product is that when the same product is distinguished by the arrival lot or due date (consumption, best taste), when novelty is attached for a limited time, the volume per location is exceeded. Such as when. As product position information, a location may be set for a combination of a product code and other identification information (for example, lot number, expiration date, presence / absence / type of novelty, etc.), and a product code for each location And other identification information combinations may be set.

  FIG. 6E is an example of product inventory information stored in the product inventory master 193. The number of stocks of each product (the number stored in the shelf in this embodiment) is specified by the product stock information. The merchandise inventory information is calculated based on, for example, the number of merchandise placed on the shelves and the number of picking from the merchandise shelves. It should be noted that the number of inputs of each product to the shelf may be stored, for example, in the product inventory master 193 as product input information (not shown).

  FIG. 7A is an example of order information stored in the order information storage unit 170. The order information is appropriately received from the order server 30. In FIG. 7A, the completion flag is a flag indicating whether or not picking of the product has been completed.

  FIG. 7B and FIG. 7C are examples of determination result information stored in the determination result storage unit 181. FIG. 7B is an example of the quality determination result information indicating the determination result of the wireless communication environment of the wireless communication environment by the determination unit 110 (good / bad transmission / reception). FIG. 7C is an example of failure possibility determination result information indicating the determination result of the possibility of failure of the wireless communication environment by the determination unit 110 (large / small possibility of transmission / reception failure).

  FIGS. 7B and 7C show the latest determination result information for each location, but the determination result storage unit 181 also stores past determination result information for each location as history information.

  FIG. 8 is a flowchart illustrating an example of operations related to generation and transmission of picking instruction data by the management server 10. In the description of the flowchart of FIG. 8, it is assumed that the management server 10 generates and transmits N picking instruction data based on order information for ordering N types of products.

  The management server 10 receives request information for requesting picking instruction data for the Mth product (M is N or less) from the mobile terminal 20 (step S40). The Mth product is an Mth product when N types of products included in the order information are arranged in the order of the first to Nth items in the order of the picking route.

  Subsequently, the management server 10 stores the number of items for which picking instruction data has been requested (step S41). For example, the management server 10 stores the product (Mth product) of the request information received from the mobile terminal 20 as the Sth product.

  Subsequently, the management server 10 determines whether or not the Mth product is the last product (step S42). For example, the management server 10 may determine whether the Mth product is the last product with reference to order information, location information, route information, and the like. When it is determined in step S42 that the Mth product is the last product (step S42; Yes), the process proceeds to step S45.

  On the other hand, when it is determined in step S42 that the Mth product is not the last product (step S42; NO), the management server 10 refers to the pass / fail determination result information and the failure possibility determination result information, and the Mth product. It is determined whether the environment at the picking position is good and the possibility of failure is small (step S43). If it is determined in step S43 that the environment of the picking position of the Mth product is “good and low possibility of failure” (step S43; Yes), the process proceeds to step S45.

  On the other hand, if it is determined in step S43 that the environment of the picking position of the Mth product is not “good and low possibility of failure” (step S43; NO), that is, the environment is bad or the possibility of failure is not found. If it is determined that it is large, the management server 10 changes the confirmation target of the processing in steps S42 and S43 to the next product (M + 1) (step S44), and returns to step S42.

  Subsequent to step S42 (YES) or step S43 (YES), the management server 10 determines whether the product of the request information received from the mobile terminal 20 is step S42 (YES) or step S43 (YES). (Step S45). In other words, the management server 10 determines whether or not the Mth product and the Sth product are the same product (step S45). In addition, when it is step S42 (YES) or step S43 (YES) about the goods of the request information received from the mobile terminal 20, since the process of step S44 is not performed, the Mth product and the Sth product are It is the same product.

  When it is determined in step S45 that the Mth product and the Sth product are the same product (step S45; YES), the management server 10 generates picking instruction data for the Mth (Sth) product (step S45). S46). That is, the management server 10 generates only the picking instruction data for the product of the request information received from the mobile terminal 20. Subsequently, the management server 10 transmits the picking instruction data generated in step S46 to the mobile terminal 20 (step S47). Then, the flowchart of FIG. 8 ends.

  If it is determined in step S45 that the Mth product and the Sth product are not the same product (step S45; NO), the management server 10 generates picking instruction data for the Sth to Mth products (step S48). ). That is, the management server 10 includes a total of (M−S + 1) pieces of picking instruction data (S-th commodity picking instruction data,... Product picking instruction data) is generated (step S48). Subsequently, the management server 10 collectively transmits the plurality of picking instruction data generated in step S48 to the mobile terminal 20 (step S49). Then, the flowchart of FIG. 8 ends.

  In the processing of step S47 and step S49, the management server 10 stores picking instruction data transmission history information (information indicating which product picking instruction data has been transmitted).

  In addition, in the processing of step S45 to step S49, the management server 10 generates invalid data (see FIG. 10B) instead of picking instruction data for a product for which inventory is insufficient (a missing product) and transmits it. To do. Note that the management server 10 may not simply generate or transmit picking instruction data (that is, it may not generate or transmit picking instruction data or invalid data).

  9 and 10 are examples of picking instruction data and picking completion data. Specifically, data with identifier “1 (instruction)” is picking instruction data, and data with identifier “2 (completion)” is picking completion data. The data of the identifier “0 (invalid)” is invalid data that is neither picking instruction data nor picking completion data. FIG. 11 is an explanatory diagram for explaining the state of picking. In FIG. 11, the shelves in the area surrounded by the broken-line rectangle are shelves that have been determined to have a bad environment or a high possibility of being bad.

  9 to 11, the management server 10 performs the location information shown in FIG. 6A, the route information shown in FIG. 6B, the basic product information shown in FIG. 6 (D), product inventory information shown in FIG. 6 (E), order information shown in FIG. 7 (A), pass / fail judgment result information shown in FIG. 7 (B), FIG. Assume that the failure possibility determination result information shown in C) is stored. 9 and 10 is picking instruction data based on the order information of the order number “C0001” shown in FIG. 7A. FIG. 11 shows a picking operation based on the picking instruction data shown in FIGS. 9 and 10.

  The order information of order number “C0001” in FIG. 7A is for ordering 12 types of products. According to the route information shown in FIG. 6B, the basic product information shown in FIG. 6C, and the product location information shown in FIG. 6D, the first to twelfth products are as follows. Note that the sixth product (ff) is a missing product (see FIG. 6E) that has not been stored in the necessary number, but is illustrated in the same manner as other products for convenience of explanation.

First product: Product “aa” with product code “4900206” stored at location number “1-2-3-2 (near P1)”
Second product: Product “bb” with product code “4900103” stored at location number “1-5-4-3 (near P2)”
Third product: Product “cc” of product code “4900018” stored at location number “2-4-6-1 (near P3)”
Fourth product: product “dd” with product code “4901089” stored at location number “3-2-3-3 (near P4)”
5th product: Product “ee” with product code “4900053” stored in location number “3--4-4-1 (near P5)”
6th product: Product “ff” with product code “4900055” stored at location number “3-6-2-2 (near P6)”
7th product: Product “gg” with product code “4900207” stored at location number “4-1-2-2 (near P7)”
Eighth product: product “hh” with product code “4900689” stored at location number “4-2-3-1 (P8 vicinity)”
9th product: product “ii” with product code “4900054” stored at location number “4-4-4-3 (near P10)”
10th product: product “jj” of product code “4900368” stored at location number “4-5-1-2 (near P11)”
11th product: product “kk” with product code “4900088” stored at location number “4-5-4-3 (near P12)”
12th product: product “ll” with product code “4900369” stored in location number “4-6-1-3 (near P13)”

  FIG. 9A shows picking instruction data that the mobile terminal 20 receives from the management server 10 at the picking work start position (P0 in FIG. 11). The picking instruction data of the instruction number “S0001-01” in FIG. 9A includes three items “aa” stored in the location number “1-2-3-2 (near P1 in FIG. 11)”. This is an instruction to pick. The product “aa” is the first product described above.

  Hereinafter, the flow until the mobile terminal 20 receives the picking instruction data of FIG. 9A will be described in detail. For example, when the operator of the mobile terminal 20 performs an operation to start picking work at P0 (start position), the mobile terminal 20 transmits request information for requesting picking instruction data to the management server 10. That is, the management server 10 receives request information for requesting picking instruction data for the first product “aa” from the mobile terminal 20 (step S40 in FIG. 8).

  The management server 10 that has received the request information requesting the picking instruction data for the first product “aa” stores that the picking instruction data for the first product “aa” has been requested (step S41 in FIG. 8). . Subsequently, the management server 10 determines whether or not the first product “aa” is the last product (step S42 in FIG. 8), but the 12th product “ll” is the last product as described above. Since it corresponds to a product, the management server 10 determines that the first product “aa” is not the last product (step S42 in FIG. 8 (NO)).

  Subsequently, the management server 10 refers to the quality determination result information and the failure possibility determination result information, and determines whether or not the environment at the picking position of the first product “aa” is “good and low possibility of failure”. However, the environment of the location number “1-2-3-2 (near P1)” of the first product “aa” is in the pass / fail judgment result information shown in FIG. 7B. Therefore, since it is “0 (good)” and “0 (low possibility of failure)” according to the failure possibility determination result information shown in FIG. It is determined that the environment at the picking position of the product “aa” is “good and low possibility of failure” (step S43 (Yes) in FIG. 8).

  Subsequently, the management server 10 determines that the product “aa” of the request information received from the mobile terminal 20 is “good and low possibility of failure” (step S45 (YES)), and is shown in FIG. Further, picking instruction data for the first product “aa” is generated (step S46 in FIG. 8) and transmitted to the mobile terminal 20 (step S47 in FIG. 8). Thereby, the mobile terminal 20 receives the picking instruction data of FIG.

  FIG. 9B shows picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P1 in FIG. 11) of the first product “aa”. The picking completion data in FIG. 9B notifies the management server 10 that the picking work for the product “aa” stored in the location number “1-2-3-2” has been completed. The picking instruction data for the product “aa” shown in FIG. 9A and the picking completion data for the product “aa” shown in FIG.

  For example, when the operator of the mobile terminal 20 performs an operation indicating that the work is completed after finishing the picking work of the product “aa” in P1, the mobile terminal 20 displays the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 9C shows picking instruction data that the mobile terminal 20 receives from the management server 10 at the picking work position (P1 in FIG. 11) of the first product “aa”. The picking instruction data of the instruction number “S0001-02” in FIG. 9C includes one item “bb” stored in the location number “1-5-4-3 (near P2 in FIG. 11)”. This is an instruction to pick. The product “bb” is the second product described above.

  Hereinafter, the flow until the mobile terminal 20 receives the picking instruction data of FIG. 9C will be described in detail. As described above, the picking completion data is notification information for notifying the management server 10 that the picking work for a certain product has been completed, and is also request information for requesting the management server 10 for the next picking instruction data. Therefore, the mobile terminal 20 has transmitted the request information for requesting the next picking instruction data to the management server 10 in P1. That is, the management server 10 receives request information for requesting picking instruction data of the second product “bb” from the mobile terminal 20 (step S40 in FIG. 8).

  The management server 10 that has received the request information requesting the picking instruction data for the second product “bb” stores that the picking instruction data for the second product “bb” has been requested (step S41 in FIG. 8). . Subsequently, the management server 10 determines whether or not the second product “bb” is the last product (step S42 in FIG. 8). As described above, the twelfth product “ll” is the last product. Since it corresponds to a product, the management server 10 determines that the second product “bb” is not the last product (step S42 (NO) in FIG. 8).

  Subsequently, the management server 10 refers to the pass / fail determination result information and the failure possibility determination result information to determine whether or not the environment at the picking position of the second product “bb” is “good and less likely to fail”. However (step S43 in FIG. 8), the environment of the location number “1-5-4-3 (near P2)” of the second product “bb” is in the pass / fail judgment result information shown in FIG. 7B. Therefore, since it is “0 (good)” and “0 (low possibility of failure)” according to the failure possibility determination result information shown in FIG. It is determined that the environment at the picking position of the product “bb” is “good and low possibility of failure” (step S43 (Yes) in FIG. 8).

  Subsequently, the management server 10 determines that the product “bb” of the request information received from the mobile terminal 20 is “good and low possibility of failure” (step S45 (YES)), and the process is illustrated in FIG. Further, the picking instruction data of the second product “bb” is generated (step S46 in FIG. 8) and transmitted to the mobile terminal 20 (step S47 in FIG. 8). Thereby, the mobile terminal 20 receives the picking instruction data shown in FIG.

  FIG. 9D shows picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P2 in FIG. 11) of the second product “bb”. The picking completion data in FIG. 9D notifies the management server 10 that the picking work for the product “bb” stored in the location number “1-5-4-3” has been completed. Note that the picking instruction data for the product “bb” shown in FIG. 9C and the picking completion data for the product “bb” shown in FIG.

  For example, when the operator of the mobile terminal 20 performs an operation to the effect that the work is completed after finishing the picking work of the product “bb” in P2, the mobile terminal 20 displays the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 9E shows picking instruction data that the mobile terminal 20 receives from the management server 10 at the picking work position (P2 in FIG. 11) of the second product “bb”. The picking instruction data of the instruction number “S0001-03” in FIG. 9E includes two products “cc” stored in the location number “2-4-6-1 (near P3 in FIG. 11)”. This is an instruction to pick. The product “cc” is the third product described above. The flow until the mobile terminal 20 receives the picking instruction data in FIG. 9E is the same as the flow until the mobile terminal 20 receives the picking instruction data in FIG. Is omitted.

  FIG. 9F illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P3 in FIG. 11) of the third product “cc”. For example, when the operator of the mobile terminal 20 performs an operation to the effect that the work is completed after finishing the picking work of the product “cc” in P3, the mobile terminal 20 performs the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 9G shows picking instruction data that the mobile terminal 20 receives from the management server 10 at the picking work position (P3 in FIG. 11) of the third product “cc”. The picking instruction data of the instruction number “S0001-04” in FIG. 9G includes six items “dd” stored in the location number “3-2-3-3 (near P4 in FIG. 11)”. This is an instruction to pick. The product “dd” is the fourth product described above. The flow until the mobile terminal 20 receives the picking instruction data in FIG. 9G is the same as the flow until the mobile terminal 20 receives the picking instruction data in FIG. Is omitted.

  FIG. 9H illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P4 in FIG. 11) of the fourth product “dd”. For example, when the operator of the mobile terminal 20 performs an operation indicating that the work is completed after finishing the picking work of the product “dd” in P4, the mobile terminal 20 performs the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 9I shows picking instruction data that the mobile terminal 20 receives from the management server 10 at the picking work position (P4 in FIG. 11) of the fourth product “dd”. The picking instruction data of the instruction number “S0001-05” in FIG. 9I includes one item “ee” stored in the location number “3-4-4-1 (near P5 in FIG. 11)”. This is an instruction to pick. The product “ee” is the fifth product described above. Note that the flow until the mobile terminal 20 receives the picking instruction data in FIG. 9I is the same as the flow until the mobile terminal 20 receives the picking instruction data in FIG. Is omitted.

  FIG. 10A shows picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P5 in FIG. 11) of the fifth product “ee”. For example, when the operator of the mobile terminal 20 performs an operation to the effect that the work is completed after finishing the picking work of the product “ee” in P5, the mobile terminal 20 performs the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 10B shows picking instruction data received from the management server 10 by the mobile terminal 20 at the picking work position (P5 in FIG. 11) of the fifth product “ee”. The picking instruction data of the instruction number “S0001-07” in FIG. 10B includes five products “gg” stored in the location number “4-1-2-2 (near P7 in FIG. 11)”. This is an instruction to pick. The product “gg” is the seventh product described above. The picking instruction data of the instruction number “S0001-08” in FIG. 10B includes two items “hh” stored in the location number “4-2-3-1 (near P8 in FIG. 11)”. This is an instruction to pick. The product “hh” is the eighth product described above. The picking instruction data of the instruction number “S0001-09” in FIG. 10B includes one item “ii” stored in the location number “4-4-4-3 (near P10 in FIG. 11)”. This is an instruction to pick. The product “ii” is the eighth product described above. Note that the data of the instruction number “S0001-06” in FIG. 10B is invalid data, and the product “ff” is required for the location number “3-3-6-2 (near P6 in FIG. 11)”. The number (2) is not stored.

  Hereinafter, the flow until the mobile terminal 20 receives the picking instruction data and the like of FIG. 10B will be described in detail. In P5, the mobile terminal 20 transmits request information for requesting the next picking instruction data (specifically, picking completion data in FIG. 10A) to the management server 10. That is, the management server 10 receives request information for requesting picking instruction data for the sixth product “ff” from the mobile terminal 20 (step S40 in FIG. 8).

  The management server 10 that has received the request information requesting the picking instruction data for the sixth product “ff” stores that the picking instruction data for the sixth product “ff” has been requested (step S41 in FIG. 8). . Subsequently, the management server 10 determines whether or not the sixth product “ff” is the last product (step S42 in FIG. 8). As described above, the twelfth product “ll” is the last product. Since it corresponds to a product, the management server 10 determines that the sixth product “ff” is not the last product (step S42 in FIG. 8 (NO)).

  Subsequently, the management server 10 determines whether the environment of the picking position of the sixth product “ff” is “good and low possibility of failure” by referring to the pass / fail determination result information and the failure possibility determination result information. However, the environment of the location number “3-6-3-2 (near P6)” of the sixth product “ff” is in the pass / fail judgment result information shown in FIG. 7B. Therefore, the management server 10 is the sixth one because it is “1 (high possibility of failure)” according to the failure possibility determination result information shown in FIG. It is determined that the environment at the picking position of the product “ff” is not “good and low possibility of failure” (step S43 (NO) in FIG. 8). Accordingly, the management server 10 changes the confirmation target to the seventh product “gg” (step S44), and returns to step S42.

  Subsequently, the management server 10 determines that the seventh product “gg” is not the last product (step S <b> 42 (NO) in FIG. 8). Subsequently, the environment of the location number “4-1-2-2 (near P7)” of the seventh product “gg” is “1 (defective)” according to the quality determination result information shown in FIG. In addition, according to the failure possibility determination result information shown in FIG. 7C, it is “1 (high possibility of failure)”, so the management server 10 picks the seventh product “gg”. It is determined that the environment of the position is not “good and low possibility of failure” (step S43 (NO) in FIG. 8). Therefore, the management server 10 changes the confirmation target to the eighth product “hh” (step S44), and returns to step S42.

  Subsequently, the management server 10 determines that the eighth product “hh” is not the last product (step S <b> 42 (NO) in FIG. 8). Subsequently, the environment of the location number “4-2-3-1 (near P8)” of the eighth product “hh” is “1 (defective)” according to the quality determination result information shown in FIG. In addition, according to the failure possibility determination result information shown in FIG. 7C, it is “1 (high possibility of failure)”, so the management server 10 picks the eighth product “hh”. It is determined that the environment of the position is not “good and low possibility of failure” (step S43 (NO) in FIG. 8). Therefore, the management server 10 changes the confirmation target to the ninth product “ii” (step S44), and returns to step S42.

  Subsequently, the management server 10 determines that the ninth product “ii” is not the last product (step S <b> 42 (NO) in FIG. 8). Subsequently, the environment of the location number “4-4-4-3 (near P10)” of the ninth product “ii” is “0 (good)” according to the quality determination result information shown in FIG. ”And“ 0 (low possibility of failure) ”according to the failure possibility determination result information shown in FIG. 7C, the management server 10 picks the ninth product“ ii ”. It is determined that the environment of the position is “good and low possibility of failure” (step S43 (Yes) in FIG. 8).

  Subsequently, since the management server 10 determines that the product “ii” different from the product “ff” of the request information received from the mobile terminal 20 is “good and low possibility of failure” (step S45 (NO)). The invalid data of the sixth product “ff”, the picking instruction data of the seventh product “gg”, the picking instruction data of the eighth product “hh”, and the ninth product “ii” shown in FIG. ”Is generated (step S48 in FIG. 8), and is collectively transmitted to the mobile terminal 20 (step S49 in FIG. 8). The management server 10 refers to the product inventory file, and generates invalid data instead of picking instruction data for a product (product “ff”) whose inventory is insufficient. Thereby, the mobile terminal 20 receives the picking instruction data and the like of FIG.

  FIG. 10C illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P7 in FIG. 11) of the seventh product “gg”. For example, when the operator of the mobile terminal 20 performs an operation indicating that the work is completed after completing the picking work of the product “gg” in P7, the mobile terminal 20 performs picking completion data as shown in FIG. Is transmitted to the management server 10. Since the management server 10 has already transmitted picking instruction data for the eighth product “hh” next to the seventh product “gg” (can be confirmed in the transmission history information), the seventh server When picking completion data for the product “gg” is received, picking instruction data is not transmitted (the processing ends in step S40 in the flowchart of FIG. 8 without proceeding to step S41). The same applies to picking completion data in FIG. 10D, FIG. 10E, and FIG. 10H to FIG.

  FIG. 10D shows picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P8 in FIG. 11) of the eighth product “hh”. For example, when the operator of the mobile terminal 20 performs an operation indicating that the work is completed after completing the picking work of the product “hh” in P8, the mobile terminal 20 displays the picking completion data as shown in FIG. Is transmitted to the management server 10.

  FIG. 10E shows picking completion data transmitted from the mobile terminal 20 to the management server 10 at a position (P9 in FIG. 11) that is “good and low possibility of failure”. Since the environment of the picking work position of the seventh product “gg” (P7 in FIG. 11) and the picking work position of the eighth product “hh” (P8 of FIG. 11) is not “good and low possibility of failure” The picking completion data of the seventh product “gg” and the eighth product “hh” is transmitted to the management server 10 again at the position where “good and low possibility of failure” is reached.

  FIG. 10F illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P10 in FIG. 11) of the ninth product “ii”. For example, when the operator of the mobile terminal 20 performs an operation indicating that the work is completed after finishing the picking work of the product “ii” in P10, the mobile terminal 20 performs the picking completion data as shown in FIG. Is transmitted to the management server 10. Note that the management server 10 has not yet transmitted the picking instruction data of the tenth product “jj” next to the ninth product “ii” (can be confirmed with the transmission history information), so the picking instruction data is not stored. Send.

  FIG. 10G illustrates picking instruction data received by the mobile terminal 20 from the management server 10 at the picking work position (P10 in FIG. 11) of the ninth product “ii”. The picking instruction data of the instruction number “S0001-10” in FIG. 10G includes four items “jj” stored in the location number “4-5-1-2 (near P11 in FIG. 11)”. This is an instruction to pick. The product “jj” is the tenth product described above. The picking instruction data of the instruction number “S0001-11” in FIG. 10B includes one item “kk” stored in the location number “4-5-4-3 (near P12 in FIG. 11)”. This is an instruction to pick. The product “kk” is the eleventh product described above. The picking instruction data of the instruction number “S0001-12” in FIG. 10B includes one product “ll” stored in the location number “4-6-1-3 (near P13 in FIG. 11)”. This is an instruction to pick. The product “ll” is the above-mentioned twelfth (last) product.

  Hereinafter, the flow until the mobile terminal 20 receives the picking instruction data of FIG. In P10, the mobile terminal 20 transmits request information for requesting the next picking instruction data (specifically, picking completion data of the instruction number “S0001-12” in FIG. 10G) to the management server 10. That is, the management server 10 receives request information for requesting picking instruction data for the tenth product “jj” from the mobile terminal 20 (step S40 in FIG. 8).

  The management server 10 that has received the request information requesting the picking instruction data for the tenth product “jj” stores that the picking instruction data for the tenth product “jj” has been requested (step S41 in FIG. 8). . Subsequently, the management server 10 determines whether or not the tenth product “jj” is the last product (step S42 in FIG. 8). As described above, the twelfth product “ll” is the last product. Since it corresponds to a product, the management server 10 determines that the 10th product “jj” is not the last product (step S42 (NO) in FIG. 8).

  Subsequently, the management server 10 refers to the quality determination result information and the defect possibility determination result information, and determines whether or not the environment at the picking position of the tenth product “jj” is “good and low possibility of defect”. However, the environment of the location number “4-5-1-2 (near P11)” of the tenth product “jj” is in the pass / fail judgment result information shown in FIG. 7B. According to the failure possibility determination result information shown in FIG. 7C, it is “1 (high possibility of failure)”. It is determined that the environment at the picking position of the product “jj” is not “good and low possibility of failure” (step S43 (NO) in FIG. 8). Therefore, the management server 10 changes the confirmation target to the eleventh product “kk” (step S44), and returns to step S42.

  Subsequently, the management server 10 determines that the eleventh product “kk” is not the last product (step S <b> 42 (NO) in FIG. 8). Subsequently, the environment of the location number “4-5-4-3 (near P12)” of the eleventh product “kk” is “0 (good)” according to the quality determination result information shown in FIG. However, according to the failure possibility determination result information shown in FIG. 7C, it is “1 (high possibility of failure)”, so the management server 10 picks up the picking position of the eleventh product “kk”. Is determined not to be “good and low possibility of failure” (step S43 (NO) in FIG. 8). Therefore, the management server 10 changes the confirmation target to the 12th product “ll” (step S44), and returns to step S42.

  Subsequently, the management server 10 determines that the twelfth product “ll” is the last product (step S <b> 42 (YES) in FIG. 8).

  Subsequently, since the management server 10 determines that the product “ll” different from the product “jj” in the request information received from the mobile terminal 20 is the last product (step S45 (NO)), FIG. The picking instruction data for the tenth product “jj”, the picking instruction data for the eleventh product “kk”, and the picking instruction data for the twelfth product “ll” shown in FIG. 8 are generated (step S48 in FIG. 8). It transmits to the mobile terminal 20 collectively (step S49 of FIG. 8). Thereby, the mobile terminal 20 receives the picking instruction data and the like of FIG.

  FIG. 10H illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P11 in FIG. 11) of the tenth product “jj”. FIG. 10I illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P12 in FIG. 11) of the eleventh product “kk”.

  FIG. 10J illustrates picking completion data transmitted from the mobile terminal 20 to the management server 10 at the picking work position (P13 in FIG. 11) of the twelfth product “ll”. Since the environment of the picking work position (P11 in FIG. 11) of the 10th product “jj” and the picking work position (P12 in FIG. 11) of the 11th product “kk” is not “good and low possibility of failure” The picking completion data of the 10th product “jj” and the 11th product “kk” are transmitted to the management server 10 together with the picking completion data of the 12th product “ll”. Since the twelfth product “ll” is the last product, the management server 10 does not transmit picking instruction data even when picking completion data of the twelfth product “ll” is received (FIG. 8). After the process of step S40 of the flowchart is executed, the process ends without proceeding to step S41).

  FIG. 12 is a flowchart illustrating an example of operations related to accumulation (collection) of environmental information by the mobile terminal 20 and the management server 10. The left side of FIG. 12 shows the operation of the mobile terminal 20, and the right side shows the operation of the management server 10. The management server 10 has been described as receiving information on the radio wave intensity and the communication time required from the mobile terminal 20, but in the description of FIG. 12, the management server 10 requires communication in transmitting / receiving picking completion data as information on the communication time required. Information about time shall be received. Further, as shown in the flowchart of FIG. 8, when the management server 10 receives the picking completion data, in principle, the management server 10 creates and transmits picking instruction data. However, in the flowchart of FIG. 12, the picking instruction data is omitted. Yes. FIG. 13 is an example of environment information stored in the management server 10.

  The mobile terminal 20 transmits the picking completion data to the management server 10 at each picking work position (step S10), and stores the transmission time (for example, in milliseconds) (step S11). The management server 10 receives the picking completion data (step S12), and transmits a confirmation response to the effect that the picking completion data has been received to the mobile terminal 20 (step S13). The mobile terminal 20 receives the confirmation response (step S14) and stores the reception time (step S15).

  Subsequently, the mobile terminal 20 calculates a communication required time (picking completion data transmission to confirmation response reception time) in transmission / reception of picking completion data from the transmission time stored in step S11 and the reception time stored in step S15. At the same time (step S16), information on the radio wave intensity is acquired (step S17). Subsequently, the mobile terminal 20 transmits information indicating the required communication time calculated in step S16 and information indicating the radio wave intensity acquired in step S17 to the management server 10 together with the location number (each picking work position) ( Step S18). The management server 10 receives the location number, information indicating the required communication time, and information indicating the radio wave intensity (step S19), and stores the information as environment information as shown in FIG. 13A (step S20). Then, the flowchart of FIG. 12 ends.

  In the flowchart of FIG. 12, the mobile terminal 20 calculates the required communication time from the transmission time and the reception time. However, the required communication time may be actually measured (timed) using a clock.

  In addition to the required communication time and radio wave intensity shown in FIG. 13 (A), the management server 10 also provides information on the access point (for example, the mobile terminal 20 at the location, as shown in FIG. 13 (B)). Identification information for identifying the connected access point 8) and information on the connected channel (for example, identification information for identifying the channel to which the mobile terminal 20 at the location is connected to the access point 8) are stored as environment information. May be. The management server 10 may receive information on the access point 8 and information on the connection channel from the mobile terminal 20 or the access point 8.

  Further, instead of or in addition to the environment information shown in FIG. 13B, the management server 10 may store the degree of congestion of the specific product for each shelf as the environment information as shown in FIG. 13C. Good. In FIG. 13C, “peripheral shelf 1” refers to the left and right shelves of the shelf (if the shelf is the leftmost shelf, the right shelf of the shelf, and the shelf is the rightmost shelf. Shelf on the left side of the shelf). The “peripheral shelf 2” is a shelf directly behind the shelf. “Specific product 1” is a product (such as a plastic bottle) with a lot of moisture. The “specific product 2” is a metal product (canned food or the like). “0 (no product)” indicates that the storage quantity is zero. “1 (small congestion)” indicates that the storage quantity is less than the reference number. “2 (large congestion)” indicates that the storage quantity is greater than or equal to the reference number. The reference numbers of the specific product 1 and the specific product 2 may be different.

  For example, the management server 10 refers to the basic product information, the product position information, and the product inventory information, acquires the storage quantity of the specific product 1 at each position (the shelf, the peripheral shelf 1, the peripheral shelf 2), If the storage quantity of the specific product 1 is zero, it is “0 (no product)”, “1 (small congestion)” if it is less than the standard number, and “2 (large congestion)” if it is less than the standard number. It is good. The same applies to the specific product 2. The management server 10 may specify the specific product from the product name (specifically, search for a character string, etc.), but from the viewpoint of processing speed, an item related to the specific product (a flag indicating that the product is the specific product 1) Product basic information having a flag indicating that the product is the specific product 2) is stored in the product master 191 or specific product information (data storing the product code of the specific product 1 is stored separately from the product basic information, the specific product 2) Or the like in which the product code is stored) may be stored in the product master 191.

  Instead of determining the degree of congestion based on the actual storage quantity of the shelf, the shelf is imaged with a camera (for example, camera 23), and the degree of congestion is determined based on the captured image (by image processing). Also good.

  Moreover, the management server 10 may memorize | store the operation number of the mobile terminal 20 in a picking area as environmental information, as shown in FIG.13 (D). In FIG. 13D, the “number of active terminals (AP1 connection)” is the number of mobile terminals 20 connected to the access point 8-1, and the “number of active terminals (AP2 connection)” is connected to the access point 8-2. The number of mobile terminals 20 in operation, “number of active terminals (total)” is the total number. For example, the management server 10 may store the environment information by inquiring the access points 8-1 and 8-2 about the number of connections of the mobile terminal 20.

  FIG. 14 is a flowchart illustrating an example of the operation of determining the communication environment by the management server 10. It is assumed that the environment information storage unit 180 stores the environment information shown in FIG.

  For example, the management server 10 determines the communication environment as shown in FIG. In FIG. 14A, the management server 10 determines the quality of the communication environment based on the latest radio wave intensity and the like (specifically, the radio wave intensity and the required communication time) (step S30). Specifically, as shown in FIG. 7B, the management server 10 determines whether the communication environment is good or bad on a shelf (line number-shelf number) basis. For example, when new environment information (specifically, radio wave intensity, required communication time) is added to the environment information storage unit 180, the management server 10 determines the quality of the communication environment for the corresponding shelf. For example, the management server 10 adds the environment information (radio wave intensity, required communication time) of the location number “1-2-3-2” to the environment information storage unit 180 (see FIG. 13A). , The quality of the communication environment of the shelf with the location number “1-2-X” is determined, and the environment information (the radio wave intensity, the required communication time) with the location number “2-4-6-1” is stored in the environment information storage unit 180. ) Is added, it is determined whether the communication environment of the shelf having the location number “2-4-XX” is good or bad.

  For example, when the environment information (radio wave intensity, required communication time) of the location number “1-2-3-2” is added to the environmental information storage unit 180, the management server 10 adds the added radio wave intensity (that is, the latest radio wave intensity). ) And a threshold (threshold for determining whether the communication environment is good or bad based on radio field intensity; hereinafter referred to as threshold D1), and the added communication required time (that is, latest communication required time) and threshold (communication environment based on communication required time). A pass / fail judgment threshold value (hereinafter referred to as a threshold value D2) is compared. Then, the management server 10 has a good communication environment quality determination result based on the added radio field strength (for example, the added radio field strength is greater than or equal to the threshold value D1), and the communication environment quality judgment result based on the added communication time is obtained. If it is good (for example, the added required communication time is less than the threshold D2), it is determined that the communication environment is good for the shelf with the location number “1-2-X-X”, and at least one good / bad determination result Is not good, it is determined that the communication environment is bad for the shelf with location number “1-2-XX”. When at least one of the pass / fail judgment results is good, it is judged that the communication environment is good for the shelf of location number “1-2-X”, and both pass / fail judgment results are not good. May determine that the communication environment is poor for the shelf with the location number “1-2-XX”.

  Subsequently, as illustrated in FIG. 7B, the management server 10 stores the determination result of the quality of the communication environment in the determination result storage unit 181 (step S31).

  Subsequently, the management server 10 determines the possibility of failure of the communication environment based on the past radio wave intensity or the like (specifically, radio wave intensity, required communication time) (step S37). Specifically, as shown in FIG. 7C, the management server 10 determines the possibility of a bad communication environment in units of shelves (line number-shelf number).

  For example, when the environment information (radio wave intensity, required communication time) of the location number “1-2-3-2” is added to the environment information storage unit 180, the management server 10 includes the environment information in FIG. To the environment information of the same shelf as the location number “1-2-3-2” (environment information in the range of the location number “1-2-1-1” to the location number “1-2-6-3”) Within this range, a plurality of environmental information (radio wave intensity, required communication time) is extracted. For example, the management server 10 extracts the top N pieces (for example, five pieces) of environment information with the newest date and time within the above range. In addition, for example, the management server 10 extracts a plurality (undefined number) of environment information before the lapse of the predetermined time within the above range (one environment information before the lapse of the predetermined time (one location number added this time) If there is only the environmental information “1-2-3-2”), the top two environmental information with the new date and time may be extracted regardless of the predetermined time). Note that the environmental information of the location number “1-2-3-2” added this time is extracted as the environmental information with the newest date and time, regardless of which method is used.

(Judgment method 1)
The management server 10 that has extracted a plurality of pieces of environmental information (radio wave intensity, communication required time) calculates an average radio wave intensity from the plurality of radio wave intensities, and calculates an average communication required time from the plurality of communication required times. Subsequently, the management server 10 compares the average radio wave intensity with a threshold value (threshold for determining possibility of communication environment failure based on the average radio wave intensity; hereinafter referred to as a threshold value D3), and compares the average communication required time with the threshold value (average communication requirement). A threshold for determining the possibility of failure of the communication environment due to time (hereinafter referred to as threshold D4) is compared. The management server 10 has a low possibility of communication environment failure due to the average radio wave intensity (for example, the average radio wave intensity is greater than or equal to the threshold D3), and also has a low possibility of communication environment failure due to the average communication time required (for example, average If the communication required time is less than the threshold value D4), it is determined that the possibility of failure of the communication environment is small for the shelf with the location number “1-2-X-X”. , It is determined that there is a high possibility of a poor communication environment for the shelf with the location number “1-2-XX”. When the possibility of failure of at least one of the shelves of the location number “1-2-X-X” is small, it is determined that the possibility of failure of the communication environment is small. May determine that there is a high possibility of a poor communication environment for the shelf with location number “1-2-X-X”. The average value may be a simple average, but may be a weighted average in which a higher weight is imposed on a newer one.

(Judgment method 2)
The management server 10 that has extracted a plurality of environmental information (a radio wave intensity and a required communication time) estimates a future radio wave intensity from a plurality of changes in the radio wave intensity, and calculates a future average communication from a change in the plurality of required communication times. Estimate the time required. Subsequently, the management server 10 compares the estimated radio wave intensity with a threshold value (threshold for determining the possibility of failure of the communication environment based on the estimated radio wave intensity; hereinafter referred to as threshold value D5), and estimates the required communication time and threshold value ( A threshold value for determining the possibility of failure of the communication environment based on the estimated required communication time (hereinafter referred to as threshold value D6) is compared. Then, the management server 10 has a low possibility of a communication environment failure due to the estimated radio wave intensity (for example, the estimated radio wave intensity is greater than or equal to the threshold D5) and a low possibility of communication environment failure due to the estimated required communication time ( For example, when the estimated communication required time is less than the threshold value D6), it is determined that the possibility of failure of the communication environment is small for the shelf with the location number “1-2-XX”, and at least one of the possibility of failure is small. If not, it is determined that there is a high possibility of a bad communication environment for the shelf with the location number “1-2-XX”. When the possibility of failure of at least one of the shelves of the location number “1-2-X-X” is small, it is determined that the possibility of failure of the communication environment is small. May determine that there is a high possibility of a poor communication environment for the shelf with location number “1-2-X-X”. Note that the above estimation may be an estimation using a statistical method.

  Subsequently, as illustrated in FIG. 7C, the management server 10 stores the determination result of the possibility of failure of the communication environment in the determination result storage unit 181 (step S38). Then, the flowchart of FIG. 14A ends.

  Further, the management server 10 may determine the communication environment as shown in FIG. In FIG. 14B, the management server 10 determines the quality of the communication environment based on the latest radio wave intensity and the like (specifically, the radio wave intensity and the required communication time) (step S130). Note that the processing in step S130 is the same as step S30 in FIG. Subsequently, the management server 10 stores the determination result of the quality of the communication environment in the determination result storage unit 181 as in step S31 of FIG. 14A (step S131).

  Subsequently, the management server 10 acquires information on the specific product (Step S132). For example, the management server 10 refers to the basic product information, the product location information, and the product inventory information, and specifies the specific product (specific product 1, specific product 2) at each position (the shelf, the peripheral shelf 1, the peripheral shelf 2). Get the storage quantity. When the environment information (radio wave intensity, required communication time) of the location number “1-2-3-2” is added to the environment information storage unit 180, the shelf of the location number “1-2-XX” The shelf (line number “1”, shelf number “2”) corresponds to “the shelf”, and the left location number “1-1-XX” shelf (line number “1”, shelf number “1”) ”And the shelf with the location number“ 1-3-XX ”on the right side (the shelf with the line number“ 1 ”and the shelf number“ 3 ”) correspond to the“ peripheral shelf 1 ”and the location number“ The shelf of “2-6-XX” (line number “2”, shelf number “6”) corresponds to “peripheral shelf 2”.

  Subsequently, the management server 10 determines the congestion level of the current specific product based on the information on the specific product acquired this time (information on the specific product acquired in step S132) (step S133). For example, the management server 10 determines the degree of congestion (“0 (no product)” / “0” of the specific product 1 at each position based on the storage quantity of the specific product 1 at each position (the shelf, the peripheral shelf 1, the peripheral shelf 2). 1 (small congestion) ”/“ 2 (large congestion ”)), and the degree of congestion of the specific product 2 at each position is determined based on the storage quantity of the specific product 2 at each position acquired this time.

  Subsequently, the management server 10 determines whether or not the determination result of the communication environment pass / fail determination based on the latest radio wave intensity or the like (the pass / fail determination in step S130) is bad (step S134). When the determination result of the pass / fail determination is bad (step S134; YES), the process proceeds to the process of step S138 after executing the processes of step S135 and step S136. When the determination result of the pass / fail determination is good (step S133; NO), the process proceeds to step S138 after executing the process of step S137.

(Processing when pass / fail judgment based on radio wave intensity etc. is bad)
The management server 10 that has determined that the determination result of the quality of the communication environment based on the latest radio wave intensity or the like is bad indicates the congestion level of the current specific product (the determination result of the congestion level in step S133) in FIG. ), It is stored as environment information (step S135). Subsequently, the management server 10 determines that there is a high possibility of a bad communication environment for the shelf (step S136), and determines a determination result (specifically, “1 (high possibility of failure)”) as a determination result storage unit 181. (Step S138). Then, the flowchart of FIG. 14B ends.

(Processing when pass / fail judgment based on radio wave intensity etc. is good)
The management server 10 that has determined that the determination result of the quality of the communication environment based on the latest radio wave intensity or the like is good communicates based on the current degree of congestion of the specific product and the degree of congestion of the specific product at the time of defect determination. The possibility of environmental failure is determined (step S137), and the determination result is stored in the determination result storage unit 181 (step S138). Then, the flowchart of FIG. 14B ends.

  Various methods can be considered for the management server 10 to determine the possibility of failure of the communication environment based on the current congestion level of the specific product and the congestion level of the specific product at the time of the failure determination. The server 10 compares the current degree of congestion of the specific product with the degree of congestion of the specific product at the time of the defect determination, and how similar the congestion degree of the current specific product is to the degree of congestion of the specific product at the time of the defect determination. Is calculated as the similarity. Then, the management server 10 may determine that the possibility of failure is high if the similarity is greater than or equal to a predetermined reference value, and may determine that the probability of failure is small if the similarity is less than the predetermined reference value. That is, the management server 10 determines that the possibility of failure is large when the storage status of the current specific product is similar to the storage status of the specific product when it is determined to be defective based on the radio wave intensity and the like. If the storage status of the specific product is not similar to the storage status of the specific product when it is determined to be defective based on the radio wave intensity or the like, the possibility of failure is determined to be small.

  When determining the possibility of failure of a certain shelf T, it has been determined multiple times (N times) that the communication environment for the shelf T has been defective in the past, and when determining the failure with the shelf T as “the shelf” When there are N pieces of information on the degree of congestion of the specific product in the determination result storage unit 181, one of the N pieces (for example, information on the degree of congestion of the specific product at the time of the latest defect determination on the shelf T) ) Information may be referred to as comparison target information, or two or more pieces (two or more and N pieces or less) of information may be referred to as comparison target information. For example, when determining the possibility of failure of the shelf having the location number “1-2-XX”, the shelf having the location number “1-2-XX” is set to “the shelf”. When six pieces of specific product information are stored in the determination result storage unit 181, the latest one of the six items may be referred to as the information to be compared, or two or more of the six items may be referred to. Six or less pieces of information may be referred to as information to be compared.

  When two or more pieces of information are referred to as information to be compared, the number of pieces of information whose similarity is equal to or more than a predetermined reference value by comparing each of the two or more pieces of information with the current degree of congestion of the specific product. The possibility of failure may be determined according to the above. For example, six pieces of information in which the shelf having the location number “1-2-X-X” is “the shelf” are stored in the determination result storage unit 181. If the number of pieces of information whose similarity is equal to or greater than a predetermined reference value is greater than a majority (3), each of the five pieces of information is compared with the congestion level of the current specific product. It may be determined that the possibility of failure is large, and that the probability of failure is small if it is less than a majority.

  Note that the degree of similarity of the specific product 1 due to the degree of congestion of the specific product 1 with respect to the similarity (final similarity) of how similar the congestion level of the current specific product is to the degree of congestion of the specific product at the time of defect determination The contribution degree of the similarity according to the degree of congestion of the specific product 2 may be varied. In other words, how similar the current congestion level of the specific product 1 is to the congestion level of the specific product 1 at the time of defect determination is the degree of congestion of the specific product 2 when the current congestion level of the specific product 2 is determined to be defective. The influence on the final similarity may be larger or smaller than how much is similar. Further, the contribution degree of the similarity degree due to the congestion degree of the shelf and the contribution degree of the similarity degree due to the congestion degree of the peripheral shelves (peripheral shelf 1 and peripheral shelf 2) to the final similarity degree may be different. In other words, how much the current congestion level of the shelf is similar to the congestion level of the shelf at the time of the defect determination, how much the current congestion level of the peripheral shelf is similar to the congestion level of the peripheral shelf at the time of the defect determination. The influence on the final similarity may be larger or smaller than if it is.

  As described above, in the example shown in FIG. 14B, when the management server 10 determines that the communication environment is poor for a certain shelf based on the radio wave intensity or the like (step S134; YES), the management server 10 In order to use it for determining the possibility of failure when the environment is determined to be good, the degree of congestion of specific products on the shelf and the peripheral shelves at the time of the failure determination is stored (step S135), and the current communication environment may be defective. Regarding the sex determination, since it is already determined that the communication environment is defective based on the latest radio wave intensity or the like, it is determined that the possibility of failure is large (step S136). On the other hand, when the management server 10 determines that the communication environment is good for a certain shelf based on the radio wave intensity or the like (step S134; NO), the congestion degree of the specific products on the current shelf and the peripheral shelves and the defect determination The possibility of failure is determined based on the degree of congestion of the specific products on the shelf and the peripheral shelves at the time (step S137).

  The management server 10 may determine the communication environment by a method that combines the method illustrated in FIG. 14A and the method illustrated in FIG. That is, the possibility of a communication environment failure may be determined based on the past radio wave intensity, the past required communication time, the congestion level of the current specific product, and the congestion level of the specific product at the time of the failure determination. As an example, the management server 10 may indicate that the communication environment may be defective due to past radio field intensity, the communication environment may be defective due to past required communication time, the congestion level of the current specific product and the congestion level of the specific product at the time of the failure determination. If it is determined that at least one of the possibility of failure of the communication environment due to the similarity is large, it may be determined that the possibility of failure of the communication environment as a whole is large.

  Further, instead of or in addition to the above, the management server 10 may determine the possibility of a bad communication environment based on an access point or the like (access point, connection channel). For example, the management server 10 stores information such as an access point at the time of failure determination for a certain shelf when the communication environment is determined to be poor based on the radio wave intensity or the like. When it is determined that the communication environment is good based on this, the possibility of failure may be determined based on information on the current access point or the like and information on the access point or the like at the time of failure determination.

  Further, instead of or in addition to the above, the management server 10 may determine the possibility of a bad communication environment based on the number of operating terminals (for example, AP1 connection, AP2 connection, overall). For example, the management server 10 stores the number of operating terminals at the time of failure determination for a certain shelf when the communication environment is determined to be poor based on the radio wave intensity or the like, and later on the shelf based on the radio wave intensity or the like. When it is determined that the communication environment is good, the possibility of failure may be determined based on the current number of operating terminals and the number of operating terminals at the time of the failure determination.

  As described above, in the picking system 1 according to the embodiment of the present invention, the management server 10 has transmission means (communication unit 120) for transmitting picking instruction data for instructing picking of each product to the mobile terminal 20, and the mobile terminal 20 Includes receiving means (communication unit 220) for receiving picking instruction data, and display means (operation display unit 210) for displaying information based on the picking instruction data. In the picking system 1, the transmission mode of the picking instruction data by the management server 10 is switched based on a predetermined condition. Specifically, as shown in FIGS. 8 to 10, when the communication environment at the next picking position is good and the possibility of failure is low, picking instruction data at the next picking position is transmitted (FIG. 8). Step S46 in FIG. 8, otherwise, the mode is switched to a mode (Step S48 in FIG. 8) in which a plurality of picking instruction data up to the picking position that becomes better in order along the route are transmitted together. Thereby, the delay of working time and the fall of working efficiency can be prevented.

  For example, in FIG. 6, when a certain worker starts picking work (when in P0), there are two or more products “ff”, but at least until the picking work for the product “ee” is completed. When assuming a case where the product “ff” has become zero due to the picking work of another worker preceding at least until the next picking instruction is acquired at P5, In the aspect in which the picking instruction data for all the products to be picked are collectively received when the picking work is disclosed, picking instruction data for the product “ff” is received uselessly. However, in the picking system 1 according to the present embodiment, Picking instruction data of the product “ff” is not received (received as invalid data). In other words, the picking system 1 according to the present embodiment prevents work time delays and work efficiency degradation that may occur in a mode in which picking instruction data of all products to be picked is collectively received when a conventional picking work is disclosed. Can do.

  In addition, since the communication environment at each of P7, P8, P11, and 12 in FIG. 6 is not good or has a high possibility of failure, picking instruction data for the next item to be picked is received one after another during the conventional picking operation. In this mode, it takes time to receive the picking instruction data at each location, but the picking system 1 according to the present embodiment does not receive the picking instruction data at each location (FIG. 10). That is, the picking system 1 according to the present embodiment prevents work time delays and work efficiency reductions that may occur in a mode in which picking instruction data for the next picking target product is received one after another during conventional picking work. Can do.

  The embodiment of the present invention has been described above, but the configuration of the apparatus, the configuration of data, the processing shown in the flowchart, the configuration of the screen, the transition of the screen, and the like can be arbitrarily changed and changed without departing from the spirit of the present invention. Correction is possible.

  For example, in the above-described embodiment, data related to a missing product is transmitted as invalid data to the mobile terminal 20 (FIG. 10B), but data related to a missing product may not be transmitted to the mobile terminal 20. .

  Moreover, in the said embodiment, although communication environment is determined per shelf (line number-shelf number unit) (FIG. 7 (B) (C)), you may determine a communication environment in detail. For example, the communication environment may be determined for each column (line number−shelf number−column number), or the communication environment may be determined for each column (line number−shelf number−column number−column number). Alternatively, the communication environment may be determined in units of lines (line number-shelf number-stage number unit) that do not consider the column. In addition, when the height of the mobile terminal 20 from the floor is not constant (when removed from the picking cart 2 or when the mobile terminal is a separate body from the picking cart), management in units of steps is possible and effective. Become.

  Moreover, in the said embodiment, although the location is managed by the line number-shelf number-column number-column number (FIG. 6 (A)), when storing multiple types of goods in the same column (mixed loading) May be managed by line number-shelf number-column number-stage number-mixed number.

  In the above-described embodiment, the example in which the picking cart 2 includes the camera 23 has been described. However, the mobile terminal 20 may include a camera instead of or in addition to the picking cart 2. Further, a camera may be installed at each location (ceiling, shelf frame, etc.) of the picking area so that the captured image can be transmitted to the mobile terminal 20 or the management server 10.

  In the above embodiment, attention is paid to the left and right shelves adjacent to the shelf (peripheral shelf 1) and the shelf immediately behind the shelf (peripheral shelf 2) as the shelves around the shelf. The shelves around are not limited to the above shelves. For example, attention may be paid to a maximum of four shelves up to two adjacent to the shelves and two left and right shelves adjacent to the shelves immediately behind the shelves.

  In the above-described embodiment, it is described that the shelf is imaged by the camera and the degree of congestion of the specific product stored in the shelf is determined based on the captured image. However, the degree of congestion of the product other than the specific product is determined. You may do it. Further, an image captured by the camera may be stored in association with the determination result of the pass / fail determination. The captured image may be stored in association with the determination result of good or bad, but it is the same as when the congestion degree of the current specific product (at the time of defect determination) is stored at the time of the defect determination in FIG. At the time of defect determination, the current captured image (at the time of defect determination) may be stored.

  Also, if a forklift or the like passes through the picking area, the product is put into a shelf, the temperature of the picking area, the humidity of the picking area, the presence or absence of electrical work or maintenance work, and the type of mobile terminal 20 is not single, it moves The possibility of poor communication environment may be determined in consideration of other events such as the type of terminal 20.

  The management server 10 may be realized by a plurality of servers. That is, according to FIG. 5A, the management server 10 includes the picking control unit 100, the determination unit 110, the communication unit 120, the order information storage unit 170, the environment information storage unit 180, the determination result storage unit 181, and the shelf master 190. Product master 191, product location master 192, and product inventory master 193, as an example, instead of the management server 10 shown in FIG. 5A, picking control unit 100, determination unit 110, communication unit 120, order The server 11 including the information storage unit 170 and the server 12 including the environment information storage unit 180, the determination result storage unit 181, the shelf master 190, the product master 191, the product position master 192, and the product inventory master 193 are provided. Also good. When the server 11 and the server 12 are provided, the server 11 may be included in the picking system 1, and the server 12 may not be included in the picking system 1.

  Further, the four Oricons 40 placed on the picking cart 2 do not necessarily have to be Oricons 40 for putting products by the same orderer (customer). Therefore, since the order number is different at least when the ordering person is different, the picking system 1 may collectively perform picking work using a plurality of pieces of order information having different order numbers. Even if picking work with multiple order information is performed collectively, the order is determined without considering which order information is included in the products included in all the order information, and the Oricon that is simply put in after picking Since it is sufficient to distinguish 40, the operation shown in FIG. 8 can be applied even in the picking work based on a plurality of order information.

  In addition, the radio wave intensity, communication time, location (location information), etc. from the mobile terminal 20 are managed as a result of the site survey (radio wave survey), and are used to determine the possibility of a failure in the radio communication environment in the product picking work. However, the results of the site survey are used for planning the warehouse (changing the shelf layout in the warehouse, moving the location of the access points (wireless base stations), planning the expansion of shelves and access points, etc.). May be. For example, as an access point movement plan, a suitable access point installation position (candidate position) for improving the radio wave environment is displayed on a screen (plan view, 3D screen, etc.) based on location information, and the above movement plan is displayed. It may be possible to grasp visually.

  In the above-described embodiment, the management server 10 sequentially transmits to the mobile terminal 20 picking instruction data of one item immediately after picking to the mobile terminal 20 (real), and the management server 10 transmits a plurality of subsequent items to the mobile terminal 20. There is a mode (batch) that collects and sends picking instruction data of products to be picked in (batch), but which mode is in effect (that is, whether the current mode (transmission mode) is real or batch) You may make it alert | report to a person. For example, in the above embodiment, when requesting picking instruction data (in the above embodiment, when picking completion data is transmitted for the second and subsequent products), the picking instruction data received next from the management server 10 is: The operation display unit displays information that indicates whether the data is one picking instruction data immediately after (that is, whether the mode is real), or whether it is subsequent plural picking instruction data (that is, whether the mode is batch). You may make it display on 210. FIG. Further, instead of or in addition to the display on the operation display unit 210, when the picking cart 2 (for example, the mobile terminal 20) is provided with a speaker, the picking cart 2 (for example, the mobile terminal 20) is turned on by a sound. If it is provided, it may be notified of which mode it is based on the light emission mode (emission color, lighting pattern, etc.) of the light emitting unit.

  Note that the management server 10 transmits information indicating which mode is actually selected when the picking instruction data is transmitted to the mobile terminal 20 (moves information indicating which mode is selected together with the picking instruction data). May be transmitted to the terminal 20), or information indicating which mode is being transmitted to the mobile terminal 20 before actually transmitting the picking instruction data (information indicating which mode is being moved) (Picking instruction data may be transmitted when there is a request from the mobile terminal 20 after transmission to the terminal 20). For example, in the latter case, mode switching (described below) may be performed in the mobile terminal 20.

  Moreover, in the said embodiment, in the said embodiment, the switching control of mode (real, batch) is performed by the management server 10 according to the change of communication environment. That is, the mode (real, batch) is automatically switched according to the communication environment, but the operator may be notified that the mode has been switched. For example, it may be displayed on the operation display unit 210 that the mode has been switched from real to batch (or from real to batch). Instead of or in addition to the display on the operation display unit 210, as described above, it may be notified that the mode has been switched by sound or the light emission mode of the light emitting unit.

  Further, the mode switching is not limited to the control by the management server 10 described above. For example, in addition to the control by the management server 10 described above, the mode is switched according to an operator instruction (an instruction to forcibly switch the current mode to the other mode) on the picking cart 2 (mobile terminal 20) side. You may be made to be. That is, mode switching may be forcibly performed regardless of the communication environment.

  For example, when other workers are concentrated on the route or when there is a possibility that the communication traffic is congested, the worker may instruct the mobile terminal 20 to switch the mode from real to batch. In addition, when other workers are not concentrated on the route, the worker may instruct mode switching from batch to real on the mobile terminal 20. The mobile terminal 20 that has received the mode switching instruction requests the management server 10 to switch the mode, and the management server 10 that has received the mode switching request controls the generation and transmission of picking instruction data according to the request.

  Note that the mode switching on the picking cart 2 (mobile terminal 20) side is started by a kick on the operator side, but the final switching possibility may be determined on the higher side. For example, the management server 10 that has received a request to switch the mode from batch to real checks the communication environment (such as the communication environment of the location of the next or subsequent product) and communicates when the mode is switched to the real as requested. When it is determined that the required time is extremely long (longer than a predetermined threshold), the request for switching from batch to real may be rejected. In addition, when the request from the mobile terminal 20 is rejected, the management server 10 may notify the mobile terminal 20 that the request has been rejected.

  On the picking cart 2 (mobile terminal 20) side, instead of or in addition to an instruction to forcibly switch the current mode to the other mode, the mode is forcibly set to a certain mode (may be the current mode). An instruction to perform may be accepted. If the picking cart 2 (mobile terminal 20) accepts an instruction to forcibly set a certain mode, the worker cannot recognize the current mode (for example, the current mode indicates to the worker). Even if it is not notified, the desired mode can be set.

  In the above embodiment, the mobile terminal 20 includes a display unit (operation display unit 210) that displays information based on picking instruction data, but the mobile terminal 20 does not necessarily include a display unit. For example, the mobile terminal 20 may include voice output means (speech reading function, speaker) that outputs information based on the picking instruction data by voice instead of the operation display unit 210. Moreover, in the said embodiment, although the mobile terminal 20 is provided with the operation means (operation display part 210) which receives operation etc. to the effect that picking was completed, the mobile terminal 20 does not necessarily need to be provided with the operation means. For example, instead of the operation display unit 210, the mobile terminal 20 may include a voice input unit (a microphone, a voice recognition function) that voice-inputs information indicating that picking has been completed. In addition, a headset is connected to the mobile terminal 20 having the voice input / output means (voice output means, voice input means) as described above, and information based on the picking instruction data is output to the worker via the headset. Information indicating that picking has been completed may be input from the operator via the headset. The mobile terminal 20 may include a voice output unit and a voice input unit in addition to the display unit (operation display unit 210).

  In addition, the mobile terminal 20 can receive order cancellation and additional message information during the picking operation. When the mobile terminal 20 includes a display unit (operation display unit 210), the mobile terminal 20 that has received message information such as order cancellation during the picking operation pops up a message screen displaying the message or picks the message. The message may be displayed on the screen displaying the instruction data (a predetermined message area or the like) to notify the operator that there has been a cancellation or the like. Note that the mobile terminal 20 can generate message information for reply in response to the operator's operation and transmit it to the transmission source of the message information. Further, when the mobile terminal 20 includes voice input / output means, the mobile terminal 20 that has received message information such as order cancellation during picking work outputs the message in voice (the display means is also the display means in some cases). A warning sound indicating that the message has been displayed is output), and the operator may be notified that there has been a cancellation or the like. Moreover, you may alert | report to an operator by the light emission mode of the light emission part (above-mentioned). Note that the mobile terminal 20 can generate message information for reply according to the pronunciation of the worker and can transmit the message information to a transmission source of the message information.

  In addition, the mobile terminal 20 can also receive message information related to the communication environment and the like (for example, message information related to radio wave intensity). The mobile terminal 20 may notify the worker by a display screen, sound, light emission, or the like, similarly to message information such as cancellation, when message information related to the communication environment or the like is given. In the case where the mobile terminal 20 includes a display unit, the status of the communication environment (for example, whether or not the radio wave intensity is good) is notified using a screen or the like displaying picking instruction data at all times during picking work. May be. Further, when the mobile terminal 20 is provided with a voice output means, during picking work, the background of the communication environment is always informed using a background sound or the like (for example, a sound output interval such as “Pee, Pee” is set). It may be lengthened when the radio field intensity is good, shortened when bad, etc.). As described above, the mobile terminal 20 may similarly notify which mode the current state is and the mode switching.

  In addition, communication (for example, message exchange) may be performed between the office and the mobile terminal 20. For example, when a cancel notification is received from a business partner during picking work, message information is transmitted from the device (for example, PC) installed in the office to the corresponding mobile terminal 20 and moved. A reply message from the terminal 20 may be received. That is, the office and the mobile terminal 20 may be able to communicate with each other.

  A program for realizing the functions of the picking system 1, the management server 10, and the mobile terminal 20 described above is recorded on a computer-readable recording medium, and the program is read into the computer system and executed. May be. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 1 ... Picking system 2 ... Picking cart 8 ... Access point 10 ... Management server 20 ... Mobile terminal 21 ... Scanner part 22 ... Measuring stand 23 ... Camera 30 ... Order server 40 ... Oricon 100 ... Picking control part 110 ... Judgment part 120 ... Communication Unit 170 ... Order information storage unit 180 ... Environmental information storage unit 181 ... Determination result storage unit 190 ... Shelf master 191 ... Product master 192 ... Product position master 193 ... Product inventory master 200 ... Control unit 210 ... Display operation unit 210 ... Communication unit 290 ... Storage unit

Claims (12)

In a picking system for picking a product using a management device and a mobile terminal that can communicate with the management device by wireless communication,
The management device
Picking information for instructing picking of each product, and transmitting means for sending to the mobile terminal,
The mobile terminal
Receiving means for receiving the picking information;
A picking system, wherein the transmission mode of the picking information transmitted by the management device is switched based on a predetermined condition. The mobile terminal
2. The picking system according to claim 1, further comprising display means for displaying a current transmission mode in the transmission means. The mobile terminal
The picking system according to claim 1, further comprising notification means for notifying that the transmission mode in the transmission means has been switched. The predetermined condition is:
It is the result of pass / fail judgment regarding the pass / fail of wireless communication at each storage location where each product is stored,
The pass / fail judgment is
4. The method according to claim 1, wherein the determination is made based on at least one of information on wireless quality in each storage location, characteristics of products in each storage location, and the degree of congestion of products in each storage location. The picking system according to claim 1. Information on the wireless quality is
5. The picking system according to claim 4, wherein the picking system is at least one of a radio wave intensity at the time of wireless communication at each storage location and a required communication time at the time of wireless communication at each storage location.   6. The picking system according to claim 4 or 5, further comprising storage means for storing information relating to the wireless quality in association with at least date and time, identification information of a wireless base station, and a connection channel. Information on the wireless quality is
The picking system according to claim 4, wherein the picking system is acquired every time a product is picked.   The picking system according to any one of claims 4 to 6, wherein the characteristic of the product is a characteristic that affects a radio wave intensity during wireless communication. An imaging means for capturing an image;
The picking system according to any one of claims 4 to 8, further comprising a storage unit that stores an image captured by the imaging unit in association with the determination result of the quality determination. A management device capable of communicating with a mobile terminal used for picking a product by wireless communication,
Picking information for instructing picking of each product is provided, a transmission means for transmitting to the mobile terminal,
The transmission device switches the transmission mode of the picking information to the mobile terminal based on a predetermined condition. A mobile terminal that can communicate with a management device by wireless communication and is used for picking a product,
Receiving means for receiving picking information for instructing picking of each product from the management device;
A mobile terminal comprising: notification means for notifying that the transmission mode of the picking information transmitted by the management apparatus has been switched. The first computer functions as a management device in a picking system that picks up products using a management device and a mobile terminal that can communicate with the management device by wireless communication, and the second computer functions as a mobile terminal in the picking system A program to
Said first computer;
Picking information for instructing picking of each product is made to function as a transmitting means for transmitting to the mobile terminal,
The second computer;
Function as receiving means for receiving the picking information;
A program characterized by switching the transmission mode of the picking information to the mobile terminal as the transmission means.

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